ICD-10-CM > S00-T88 > T36-T50 > T47 > T47.0 > T47.0X > T47.0X5 T47.0X5 Adverse effect of histamine H2-receptor blockers Non-Billable/Non-Specific Codes T47.0X5A..., initial encounterT47.0X5D..., subsequent encounterT47.0X5S..., sequela